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  • Committer: kirkland at ubuntu
  • Date: 2023-11-22 22:45:43 UTC
  • Revision ID: kirkland@ubuntu.com-20231122224543-v5igclwtj4xga8tm
Permanently moved Byobu source code repository to https://github.com/dustinkirkland/byobu

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usr/bin/byobu-layout.in
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#!/bin/sh -e
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#
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#    layout: save and restore byobu layouts
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#    Copyright (C) 2011-2014 Dustin Kirkland <kirkland@byobu.org>
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#
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#    Authors: Dustin Kirkland <kirkland@byobu.org>
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#
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#    This program is free software: you can redistribute it and/or modify
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#    it under the terms of the GNU General Public License as published by
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#    the Free Software Foundation, version 3 of the License.
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#
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#    This program is distributed in the hope that it will be useful,
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#    but WITHOUT ANY WARRANTY; without even the implied warranty of
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#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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#    GNU General Public License for more details.
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#
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#    You should have received a copy of the GNU General Public License
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#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
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PKG="byobu"
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[ -r "$HOME/.byoburc" ] && . "$HOME/.byoburc"
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[ -z "${BYOBU_PREFIX}" ] && export BYOBU_PREFIX="@prefix@" || export BYOBU_PREFIX
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. "${BYOBU_PREFIX}/lib/${PKG}/include/common"
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# Get the layouts directory
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DIR="$BYOBU_CONFIG_DIR/layouts"
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mkdir -p "$DIR"
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PRESETS="even-horizontal even-vertical main-horizontal main-vertical tiled"
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current_panes=$(tmux list-panes | wc -l)
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list_layouts() {
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        echo
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        echo "Byobu Saved Layouts"
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        local count=0 i= desc= count= p=
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        for i in $PRESETS "$DIR"/*; do
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                desc=${i##*/}
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                count=$(expr $count + 1)
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                [ -f "$i" ] && p=$(head -n1 "$i")
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                [ -n "$p" ] && p=" ($p splits)"
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                echo "  $count. $desc$p"
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        done
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        echo
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        _RET="$count"
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}
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case "$1" in
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        "save")
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                layout=$(tmux list-windows | grep "(active)$" | sed -e "s/.*\[layout //" -e "s/\] .*(active)$//")
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                panes=$(tmux list-panes | wc -l)
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                if [ -n "$2" ]; then
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                        name="$2"
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                else
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                        echo
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                        echo "Restore layout with <shift-F8>, save a layout with <shift-ctrl-F8>"
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                        while true; do
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                                list_layouts
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                                echo -n "Enter a unique name to save this layout: "
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                                name=$(head -n1)
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                                valid=1
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                                for i in $PRESETS "$DIR"/*; do
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                                        i=${i##*/}
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                                        if [ "$i" = "$name" ]; then
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                                                valid=0
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                                        fi
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                                done
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                                [ "$valid" = "1" ] && break
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                        done
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                fi
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                printf "$panes\n$layout\n" > "$BYOBU_CONFIG_DIR/layouts/$name"
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        ;;
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        "restore")
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                if [ -n "$2" ]; then
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                        # Layout selected on the command line
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                        name="$2"
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                else
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                        # List the saved layouts, prompt the user to select one
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                        list_layouts
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                        count="$_RET"
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                        while true; do
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                                echo -n "Select a layout to restore [1-$count]: "
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                                selected=$(head -n1)
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                                if [ -n "$selected" ] && [ $selected -le $count ] && [ $selected -ge 1 ]; then
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                                        break
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                                fi
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                        done
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                        count=0
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                        for i in $PRESETS "$DIR"/*; do
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                                count=$(expr $count + 1)
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                                if [ $count -eq $selected ]; then
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                                        name=$(basename "$i")
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                                        break
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                                fi
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                        done
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                fi
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                # Get the details of the selected layout
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                panes=
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                layout=
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                if [ -f "$DIR/$name" ]; then
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                        panes=$(head -n1 "$DIR/$name")
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                        layout=$(tail -n1 "$DIR/$name")
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                else
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                        if [ $current_panes -eq 1 ]; then
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                                panes=4
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                        else
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                                panes=0
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                        fi
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                        layout="$name"
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                fi
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                # Create panes if nececessary to restore the layout
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                while [ $(tmux list-panes | wc -l) -lt $panes ]; do
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                        tmux split-window
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                        tmux select-layout tiled
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                done
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                # Finally, restore the layout and refresh
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                tmux select-layout "$layout"
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                tmux source "$BYOBU_PREFIX/share/byobu/profiles/tmuxrc"
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        ;;
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        list)
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                list_layouts
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                exit 0
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        ;;
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        *)
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                echo "ERROR: Invalid argument, try [save|restore|list]" 2>&1
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                exit 1
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        ;;
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esac